Thrust Cylinder and Servo Drive Enhance Dosing

Micromech has revealed how a Parker Electro thrust cylinder and decentralised servo drive has helped a manufacturer offering systems for liquid and pasty products solve a precision dosing problem. The machine manufacturer wanted to improve the dosing precision of its piston filling pumps and ensure the gentle handling of products to be dosed. The inaccuracies of its existing system were due to the poor positioning properties of its conventional pneumatic solution.

The solution was to use a Parker Electro thrust cylinder and decentralised servo drive to enhance precision. The existing pneumatic solution was replaced by an IP65 electro thrust cylinder driving the pump piston and in combination with a Parker servo-drive controller it allowed for delicate and precisely repeatable dosing. The servo drives arrangement provides complete control of the dosing pump. Via a defined interface and a corresponding fieldbus option card the process was easily integrated into the end customer's existing control and fieldbus architecture.

Alternatively, it can be operated independently without an external controller in cost-sensitive applications. In addition to construction time savings thanks to a standardised mechanical solution, the mounting time was reduced by several hours due to pre-mounted and customised components, according to Micromech, Parker's motion partner. The flexibility as a result of these improvements and reduced mounting times of this advanced machine means the manufacturer has introduced the new model into the market, enabling customers to benefit from quality production, less waste, less maintenance and reduced costs.

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